﻿using System;
using System.Collections.Generic;
using System.Text;

namespace LyyCommon
{
    /// <summary>
    /// 帮助组件
    /// </summary>
    public static class Utils
    {
        #region Time
        public static string SetFirstToUpper(this String str)
        {
            string rst = "";
            if (string.IsNullOrEmpty(str))
            {
                return rst;
            }
            rst = str[0].ToString().ToUpper() + (str.Length > 1 ? str.Substring(1) : "");
#if NET40
            return rst+" NET40";
#elif NET45
            return rst+" NET45";
#elif NET46
            return rst+" NET46";
#elif NET47
            return rst +" NET47";
#elif NET48
            return rst+" NET48";
#elif NETCOREAPP2_0
            return rst+" NETCOREAPP20";
#elif NETCOREAPP2_2
            return rst+" NETCOREAPP22";
#elif NETCOREAPP3_0
            return rst+" NETCOREAPP30";
#elif NETSTANDARD2_0
            return rst + " netstandard2.0";
#elif NETSTANDARD2_1
            return rst + " netstandard2.1";
#else
            return rst;
#endif
        }


        #endregion

        #region 验证身份证号码
        /// <summary>
        /// 验证身份证号码
        /// </summary>
        /// <param name="Id">身份证号码</param>
        /// <returns>验证成功为True，否则为False</returns>
        public static bool CheckIDCard(string Id)
        {
            if (Id.Length == 18)
            {
                bool check = CheckIDCard18(Id);
                return check;
            }
            else if (Id.Length == 15)
            {
                bool check = CheckIDCard15(Id);
                return check;
            }
            else
            {
                return false;
            }
        }

        #region 身份证号码验证

        /// <summary>
        /// 验证15位身份证号
        /// </summary>
        /// <param name="Id">身份证号</param>
        /// <returns>验证成功为True，否则为False</returns>
        private static bool CheckIDCard18(string Id)
        {
            long n = 0;
            if (long.TryParse(Id.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(Id.Replace('x', '0').Replace('X', '0'), out n) == false)
            {
                return false;//数字验证
            }
            string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
            if (address.IndexOf(Id.Remove(2)) == -1)
            {
                return false;//省份验证
            }
            string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-");
            DateTime time = new DateTime();
            if (DateTime.TryParse(birth, out time) == false)
            {
                return false;//生日验证
            }
            string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');
            string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');
            char[] Ai = Id.Remove(17).ToCharArray();
            int sum = 0;
            for (int i = 0; i < 17; i++)
            {
                sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString());
            }
            int y = -1;
            Math.DivRem(sum, 11, out y);
            if (arrVarifyCode[y] != Id.Substring(17, 1).ToLower())
            {
                return false;//校验码验证
            }
            return true;//符合GB11643-1999标准
        }

        /// <summary>
        /// 验证18位身份证号
        /// </summary>
        /// <param name="Id">身份证号</param>
        /// <returns>验证成功为True，否则为False</returns>
        private static bool CheckIDCard15(string Id)
        {
            long n = 0;
            if (long.TryParse(Id, out n) == false || n < Math.Pow(10, 14))
            {
                return false;//数字验证
            }
            string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
            if (address.IndexOf(Id.Remove(2)) == -1)
            {
                return false;//省份验证
            }
            string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-");
            DateTime time = new DateTime();
            if (DateTime.TryParse(birth, out time) == false)
            {
                return false;//生日验证
            }
            return true;//符合15位身份证标准
        }
        #endregion
        #endregion

        #region 数据转换
        #region String 转其他类型
        /// <summary>
        /// string 转int ,失败返回-1
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        public static int StrToInt(string s)
        {
            int rst = -1;
            int.TryParse(s, out rst);
            return rst;
        }

        /// <summary>
        /// string 转int, 失败 返回默认值
        /// </summary>
        /// <param name="s">要转换的字符串</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static int StrToInt(string s, int def)
        {
            int rst = -1;
            if (int.TryParse(s, out rst))
            {
                return rst;
            }
            return def;
        }

        /// <summary>
        /// string转decimal,失败返回-1
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <returns></returns>
        public static decimal StrToDecimal(string s)
        {
            decimal rst = -1;
            decimal.TryParse(s, out rst);
            return rst;
        }

        /// <summary>
        /// string 转decimal,失败返回默认值
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static decimal StrToDecimal(string s, decimal def)
        {
            decimal rst = -1;
            if (decimal.TryParse(s, out rst))
            {
                return rst;
            }
            return def;
        }

        /// <summary>
        /// string 转float,失败返回-1
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <returns></returns>
        public static float StrToFloat(string s)
        {
            float rst = -1;
            float.TryParse(s, out rst);
            return rst;
        }

        /// <summary>
        /// string 转float,失败返回默认值
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static float StrToFloat(string s, float def)
        {
            float rst = -1;
            if (float.TryParse(s, out rst))
            {
                return rst;
            }
            return def;
        }

        /// <summary>
        /// string 转datetime,失败时返回MinValue(1970)
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <returns></returns>
        public static DateTime StrToDateTime(string s)
        {
            DateTime time = DateTime.MinValue;
            DateTime.TryParse(s, out time);
            return time;
        }

        /// <summary>
        /// string 转datetime,失败时返回默认值
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static DateTime StrToDateTime(string s, DateTime def)
        {
            DateTime time = DateTime.MinValue;
            if (DateTime.TryParse(s, out time))
            {
                return time;
            }
            return def;
        }

        #endregion

        #region Object 转其他类型

        public static string ObjToStr(object o){
            return o.ToString();
        }

        /// <summary>
        /// string 转int ,失败返回-1
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        public static int StrToInt(object s)
        {
            int rst = -1;
            int.TryParse(ObjToStr(s), out rst);
            return rst;
        }

        /// <summary>
        /// string 转int, 失败 返回默认值
        /// </summary>
        /// <param name="s">要转换的字符串</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static int StrToInt(object s, int def)
        {
            int rst = -1;
            if (int.TryParse(ObjToStr(s), out rst))
            {
                return rst;
            }
            return def;
        }

        /// <summary>
        /// string转decimal,失败返回-1
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <returns></returns>
        public static decimal StrToDecimal(object s)
        {
            decimal rst = -1;
            decimal.TryParse(ObjToStr(s), out rst);
            return rst;
        }

        /// <summary>
        /// string 转decimal,失败返回默认值
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static decimal StrToDecimal(object s, decimal def)
        {
            decimal rst = -1;
            if (decimal.TryParse(ObjToStr(s), out rst))
            {
                return rst;
            }
            return def;
        }

        /// <summary>
        /// string 转float,失败返回-1
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <returns></returns>
        public static float StrToFloat(object s)
        {
            float rst = -1;
            float.TryParse(ObjToStr(s), out rst);
            return rst;
        }

        /// <summary>
        /// string 转float,失败返回默认值
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <param name="def">失败时返回的默认值</param>
        /// <returns></returns>
        public static float StrToFloat(object s, float def)
        {
            float rst = -1;
            if (float.TryParse(ObjToStr(s), out rst))
            {
                return rst;
            }
            return def;
        }

        /// <summary>
        /// string 转datetime,失败时返回MinValue(1970)
        /// </summary>
        /// <param name="s">要转换的值</param>
        /// <returns></returns>
        public static DateTime StrToDateTime(object s)
        {
            DateTime time = DateTime.MinValue;
            DateTime.TryParse(ObjToStr(s), out time);
            return time;
        }

        public static DateTime StrToDateTime(Object s, DateTime def)
        {
            DateTime time = DateTime.MinValue;
            if (DateTime.TryParse(s.ToString(), out time))
            {
                return time;
            }
            return def;
        }

        #endregion 

        #endregion

    }
}
